1.)
http://www.amazon.com/Basic-Engineer.../dp/0471407402
This text is a pretty good introduction. Easy to follow, intended for non-EE majors, but as a high school student, I think it's a good text to get the basics down.
2.)
http://www.amazon.com/Fundamentals-E...4456728&sr=1-2
Good, goes into more topics and details than book 1, but pricey. I'd recommend the first book.